Cyclic vomiting is a disorder in which a person has periods of vomiting that can last anywhere from a few hours to several days.

When a problem with the brain or neurological conditions, such as migraine, multiple sclerosis, hydrocephalus, brain tumor, optic atrophy and others, causes vision problems, this is known as neuro-ophthalmic causes of visual loss.

A Botox injection for migraines is an injection of botulinum toxin into small muscles under the skin throughout various areas around the face, head and neck.